ROTAFLO® High Performance Vacuum Stopcock, straight pattern, plain side-arms bore 7mm, 6mm bore

Manufactured from 3.3 expansion borosilicate glass complying with ISO 3585 (ASTM E-438 Type 1 Class A), PTFE stopcock key with an ergonomic red PP hand grip , The rotary design allows fine single drop control, Each stopcock is individually tested by mass spectrometer for 10-?Torr vacuum performance and supplied with a certificate of performance, No lubrication required - no seizure and no contamination, Can be used over a temperature range -20°C to 200°C, Locking ring to prevent accidental removal of the stopcock key, Side-arms are 100mm in length